Thomas mcgeane



(No ModeL) T. MGGRANB..

APPARATUS FOR CASTING HORSLSHGBS.v

Patented Apr. 7,1885.

u. PETERS. num-umm. www n c UNITED kSTATES PATENT OFFICE. p i

THOMAs MCGRANE, OE NEW YORK, N. Y., AssiGNOR TO JOHN J. MOGRANE ANDMARGARET A; MCGRANE, ROTH OE-sAME PLAGE.

APPARATUS FOR CASTING HORSESHOES.

SPECIFICATION formingpart of Letters Patent NO. 315,314, dated April '7,1885. l

Application filed February 21, 185:24. (No model.)

rsection of the same, taken on the line x w.

Figs. 3, 4, and 5 are views inV detail of the molds. Fig. 6 is aperspective view of a finished horseshoe.

My invention relates to improved apparatus for the casting ofhorseshoes; and it consists substantially in the construction andcoinbination of parts, as will hereinafter be distinctly pointed` out. iIn the casting process I use asuitable bearingframe, A, upon which areplaced the molds, one or more, consisting of a mold proper, D, in whichis worked in intaglio the form of a horseshoe-blank, the back plate, C,which also carries a part oi' the gate through which the` molten metalis poured into the mold, and the bridge B, which supports and guides themold D by means of pins b, which pass through holes provided in the moldD. The

bridge B and theback p1ate,C, are respectively held in place' by meansof notches a a', provided in the bearing-frame A. The gate or lip of theback plate,G, as shown in the drawings, projects over the' sprue-hole ofthe adjoining or next mold D, forming one continuous gate for all themolds on the bearingframe A. The pouring can consequently be continuedfrom one mold to the other without interrupting the stream from theCrucible` or other pouring-vessel. The mold D is held up against theback plate, G, during the operation of casting and removed therefrom asthe'metal sets by operating the forked lever Z, rock-shaft 7c, andhand-lever t, working in journals in the bearing-frame A, as` shown.

In Fig. lis shown a series of molds in position, the left-hand one beingshown in section, the middle one as closed1 ready to receive the metal,the upper part being shown in section to show the arrangement of thegate or sprue, and the right-hand one in section as open, showing theshoe as cast, also as stated, and, second, as holding the shoe-` blankwhen cast back against the back plate, C, and to preventit from stickingin the mold D when the latter is opened bythe action of the lever i andits connections. such as plumbago, for instance-are applied Chemicalstothe interior of the molds to prevent adhef sion of the shoeV and make iteasy of removal. By means of the pins b,`I am also enabled while themolds are open to hold the blank in contact with back plate, C, untilthey are cool, thereby preventing the air from striking the hot metal onits ilat surface. Time isA allowed therebyfor the thin sections-theedges-to cool gradually, and chill-.cracks in such edges areconsequently avoided. This v 5 s an exceedingly important function ofthe pins b, as itobviates a veryfrequent source of loss otherwise metwith when the whole casting is exposed to the air in ared-hot conf fdition.

The letters g g, h, and i2 indicate, respect.. ively, that part of themold by which the heelcalk, the toe-calk, and the nail-holes are formedwith the shoe, the said nail-holes being formed either by pinsprojecting from the back plates, which enter corresponding openings inthe molds, or by a subsequent operation.

Having thus described my invention, what I claim is- 1. In apparatus forcasting horseshoes and .1

horseshoe-blanks, the combination, with the bearing-frame A, of thelever Z, `rock-shaft k, hand-lever t', mold D. the back plate, Gandbridge B, having pins b, and secured immovai bly to the frame, as andfor the forth.

2,. In apparatus for casting horseshoes and purpose sethorseshoe-blanks, the combination, with the ,e t

mold D, )rovided with perforations, of the bridge B, provided with pinsI), adapted to enf N ter said perforations, and the back plate, C,whereby the mold is guided and supported and the blank or shoe preventedfrom stick f ing in the mold when the latter is operated,

as and for the purpose set forth.

THOMAS MOGRANE.

Witnesses:

H. A. HALL, J. H. STEWART).

